Bioconversion of Keratin Wastes Using Keratinolytic Microorganisms to Generate Value-Added Products

Figure 8

Efficiency of keratinase (58 U/ml), produced by Vibrio sp. strain R11, for dehairing activity without any addition of Na₂S and lime in the reaction mixture at 37°C for 12 h incubation: (a) control (sheepskin treated with denatured or heat-inactivated keratinolytic enzyme at 100°C for 1 h, with buffer alone) and (b) enzyme-treated sheepskin incubated with nondenatured enzyme (normal) [62].

(a)

(b)